Adjustable wrench



FIG. 1 is a perspective view, looking down at the front and left sides, of an adjustable wrench embodying the new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof. 

The ornamental design for an adjustable wrench, as shown and described. 